This bulletin publishes the results of 10 experiments that addressed aspects of nutritive value (i.e., laboratory estimates of dry matter disappearance
and chemical composition) and quality (i.e., animal responses) of cool-season perennial forages preserved as hay. The focus of this bulletin is the evaluation of tall fescue cultivars, forage maturity, drying methods, and diurnal changes in forages. However, experiments on other forages (i.e., reed canarygrass and alfalfa) have also been included. The purpose of this bulletin is to provide original research data in a summarized format, with associated methodology, for future reference.